NIOS Biology Syllabus Class 12 - Your Academic Roadmap Complete with Study Help
NIOS Biology Syllabus Class 12 - Everything You Need to Know to Prepare Smarter and Score Higher
NIOS Biology Syllabus Class 12 - Your Academic Roadmap Complete with Study Help
NIOS Biology Syllabus Class 12 - Everything You Need to Know to Prepare Smarter and Score Higher
Confused about what to study in NIOS Class 12 Biology? Do you want to do well but aren't sure where to begin? This NIOS Biology Syllabus Class 12 will give you a clear direction to follow. It's not only about animals and plants it's about living and health, as well as how nature and biology interact.
In Unnati Education, we make things easy with current notes, topic-specific guidance and solutions to TMAs and actual test question banks designed to be exactly in line with what's in the NIOS Biology syllabus so you can be prepared confidently even if you're reappearing after a break.
NIOS Biology Syllabus Class 12
Course Structure: The NIOS Class 12 Biology (314) syllabus for 2025-26 is divided into 5 units, covering Reproduction, Genetics, Biology and Human Welfare, Biotechnology, and Ecology. Total marks: 80 (Theory) + 20 (Practical), totaling 100 marks.
- Unit 1: Reproduction
- Chapter 1: Reproduction in Organisms
- Chapter 2: Sexual Reproduction in Flowering Plants
- Chapter 3: Human Reproduction
- Chapter 4: Reproductive Health
- Unit 2: Genetics and Evolution
- Chapter 5: Principles of Inheritance and Variation
- Chapter 6: Molecular Basis of Inheritance
- Chapter 7: Evolution
- Unit 3: Biology and Human Welfare
- Chapter 8: Human Health and Disease
- Chapter 9: Strategies for Enhancement in Food Production
- Chapter 10: Microbes in Human Welfare
- Unit 4: Biotechnology and Its Applications
- Chapter 11: Biotechnology: Principles and Processes
- Chapter 12: Biotechnology and its Applications
- Unit 5: Ecology and Environment
- Chapter 13: Organisms and Populations
- Chapter 14: Ecosystem
- Chapter 15: Biodiversity and Conservation
- Chapter 16: Environmental Issues
Marks Distribution (Theory - 80 Marks):
| Unit | Marks |
|---|---|
| Reproduction | 14 |
| Genetics and Evolution | 18 |
| Biology and Human Welfare | 14 |
| Biotechnology and Its Applications | 12 |
| Ecology and Environment | 22 |
| Total Theory | 80 |
| Practical | 20 |
| Grand Total | 100 |
For the full official syllabus PDF, click here to request on WhatsApp.
Bifurcation of Syllabus in Biology (314)
| Total no. of Lessons = 31 | ||
|---|---|---|
| MODULE (No. & name) | TMA (40%) | Public Examination (60%) |
| 1. Module-I: Diversity and Evolution of Life (12 Marks) |
L-1. Origin and Evolution of Life and Introduction to Classification L-4. Cell Structure and Function |
L-2. The Kingdom Monera, Protoctista and Fungi L-3. Kingdom Plantae and Animalia L-5. Tissues and other Level of Organization |
| 2. Module-II: Forms and Functions of Plants and Animals (26 Marks) |
L-8. Absorption, Transport and Water Loss in Plants L-9. Nutrition in plants - Mineral Nutrition L-13. Nutrition and Digestion L-14. Respiration and Elimination of Nitrogenous Wastes L-16. Locomotion and Movement L-18. Homeostasis: The Steady State |
L-6. Root system L-7. Shoot system L-10. Nitrogen Metabolism L-11. Photosynthesis L-12. Respiration in Plants L-15. Circulation of Body Fluids L-17. Coordination and Control - The Nervous and Endocrine Systems |
| 3. Module-III: Reproduction and Heredity (22 Marks) |
L-20. Growth and Development in Plants L-24. Genetics and Society |
L-19. Reproduction in Plants L-21. Reproduction and Population Control L-22. Principles of Genetics L-23. Molecular Inheritance and Gene Expression |
| 4. Module-IV: Environment and Health (13 Marks) |
L-26. Conservation and Use of Natural Resources L-27. Pollution L-29. Some Common Human Diseases |
L-25. Principles of Ecology L-28. Nutrition and Health |
| 5. Module-V: Emerging Areas in Biology (7 Marks) |
L-30 Immunobiology: An Introduction L-31 Biotechnology |
– |
QUESTION PAPER DESIGN
Subject : Biology Level: Senior Secondary
Maximum Marks (Theory): 80 Time: 3 Hours
1. Weightage by Objectives
| OBJECTIVES | % OF TOTAL MARKS | MARKS |
| KNOWLEDGE | 25% | 20 |
| UNDERSTANDING | 45% | 36 |
| APPLICATION & Skills | 30% | 24 |
| Total | 100% | 80 |
2. Weightage by type of Questions
| Sl. No. | Type of Question | No. of questions | Marks |
| 1. | Long Answer (LA) (5 marks) | 2 | 10 |
| 2. | Short Answer (SA) (3 marks) | 4 | 12 |
| 3. | Very Short Answer (2 marks) | 9 | 18 |
| Total | 40 | ||
| 4. | MCQ (1 mark) # | 16 | 16 |
| 5. |
Objective Type Questions (1*2 = 2 marks) ## (with 2 sub-parts of 1 mark each) [Fill in the blanks, match the column, paragraph or case-based questions, one-word questions, Flow Chart, Diagram Based, etc.] |
12 | 24 |
| Total | 40 | ||
| G. Total | 80 | ||
Note:
# In Objective Type Questions of 1 mark: 8 Questions will have internal choices.
## In Objective Type Questions of 2 marks: 6 Questions will have 4 sub-parts out of which the learner has to do any 2 sub-parts.
3. Difficulty Level of the Question Paper
| Types of question | Marks | Percentage of marks |
| Estimated Level | 16 | 20 |
| Difficulty | 40 | 50 |
| Average | 24 | 30 |
| Total | 80 | 100 |
4. Weightage by Contents
| Modules | Marks |
| 1. Diversity and Evolution of Life | 12 |
| 2. Form and function of plants and animals | 26 |
| 3. Reproduction and Heredity | 22 |
| 4. Environment & Health | 13 |
| 5. Emerging Areas in Biology | 7 |
| Total | 80 |
NIOS Course 12 Biology Materials for Study - What You Get from Unnati
Unnati Education provides a complete set of study tools for the biology syllabus for NIOS Class 12 that are based on the most recent examination pattern. We are aware of how difficult it is to locate high-quality study materials, especially in the case of time constraints. This is why we offer:
- Notes for completeness on each of the Biology (314) units
- Solved assignment (TMA) completed as per NIOS guidelines
- Question papers from the previous year with their answers
- New papers and sample papers that provide evaluation assistance
- Live and recorded lectures on difficult subjects
- Practical assistance, including the viva as well as file preparation
- Weekly tests and a full exam simulation exercise
These resources are great for NIOS students who are preparing for their exams from Delhi, Bihar, Rajasthan, UP, Mumbai, or even in the UAE, Saudi Arabia, or Nepal.
Why Choose Unnati Education for NIOS Biology Coaching
Unnati Education is not just an institute for coaching. We're your academic support system. We know the issues NIOS students confront: the lack of direction and panic at the last minute, or a failure in their regular education. Our Biology coaching program is designed to tackle these issues head-on.
Here's how we can help you:
- Highly skilled tutors in Biology (314) who have NIOS expertise
- Step-by-step explanation of concepts
- Write practice questions using keyword usage
- Live doubt sessions every week
- Biology-related coaching in Hindi as well as English medium
- Laboratory experiment training to prepare for real-world markets
Our goal is to assist each student, no matter how bright or weak, to achieve their academic potential fully without a hiccup or delay.
What's Inside Our Biology Support Kit - Class 12 NIOS
To assist you in completing your Biology (314) syllabus effectively, to ensure you can pass the Biology (314) syllabus, this Biology Study Kit includes:
- Topic-specific summary notes with diagrams
- Solved TMAs to submit
- Papers from the past year and sample questions from the current year.
- File preparation and Viva questions for practical exercises
- Revision videos recorded for difficult concepts
- Regular tests, with written feedback on the answers.
This set will ensure that you're never lost or in the dark. Students from all over India and overseas can count on our specially designed support packages.
Final Words - Score Well With NIOS Biology Syllabus Class 12 and Unnati
The syllabus for biology class 12 can seem a bit long. However, with the proper guidance along with notes and past exam practice, you will not only pass, but also achieve a top score. Starting from Genetics to Ecology from theory to practicals, we offer complete support for every section in the Biology (314) course.
Students who select Unnati Education benefit from customized lessons, organized materials as well as support for clearing doubts. The support you receive is at every stage, beginning with TMA submission to revisions for the final exam.
FAQs - NIOS Class 12 Biology (314)
What are the passing marks in NIOS Biology (314)?
You need overall 33% → minimum 27/80 in theory + 7/20 in practical/TMA. Both are compulsory.
Do you provide solved TMA and practical files for Biology?
Yes, 100%! We give ready-to-submit handwritten/typed TMA + complete practical file with diagrams, observations, spotting, viva questions — guaranteed full marks.
Is NIOS Biology tougher than CBSE/ICSE?
No! Syllabus is almost the same but NIOS questions are more direct & diagram-based. With proper coaching, students easily score 70–90+ marks (many score higher than in regular boards).
Can I study NIOS Biology completely online?
Yes! Full live + recorded classes, animated diagrams, chapter-wise notes, daily practice sheets & doubt clearing — perfect for distance & working students.
Do I have to visit a physical lab for Biology practicals?
No need to go anywhere. We provide complete guidance + ready practical file. You only appear for a short viva at your nearest NIOS centre (we also help book the slot).
Contact Unnati Educations - Your Academic Lifeline
If you're eager to begin your journey or need guidance in the NIOS admissions process, we're just a message away.
